Compilare: main.cpp: In function 'void Dfs1(int)': main.cpp:35:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v1[u].size();++i) ~^~~~~~~~~~~~~ main.cpp: In function 'void Dfs2(int, bool)': main.cpp:58:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v2[u].size();++i) ~^~~~~~~~~~~~~ main.cpp: In function 'void DO()': main.cpp:92:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<mama.size();++i) ~^~~~~~~~~~~~ main.cpp:95:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<mama[i].size();++j) fout<<mama[i][j]<<" "; ~^~~~~~~~~~~~~~~